Class 9 Science

Online Test of Chapter 5 The Fundamental unit of Life Quiz 1 Science| Class 9th
1. Who discovered the nucleus of the cell?
(a) Robert Hooke
(b) Robert brown
(c) Leeuwenhoek
(d) Purkinje
2. Which of the following are the main constituents of cell wall?
(a) Cellulose
(b) Pectin
(c) starch
(d) Protein
3. Who coined the term protoplasm?
(a) Virchow
(b) Leeuwenhoek
(c) Purkinje
(d) Robert Hooke
4. Which of the following is called power hou

Questions :
1. In which of the following cases of motions, the distance moved and the magnitude of displacement are equal?
(a) If the car is moving on a straight road.
(b) If the car is moving in circular path.
(c) The pendulum is moving to and fro.
(d) The earth is revolving around the sun.
2. A particle is moving in a circular path of radius r, the displacement after half a circle would be:
(a) zero
(b) πr
(c) 2r
(d) 2πr
3. Slope of vel...

Questions :
1.Find the average speed of a bicycle if it completes two round of a circular track of radius 140m twice in 5min 52 sec.
(a) 10m/s
(b) 5m/s
(c) 2m/s
(d) 4m/s
2. If 's' is displacement and 'd' is distance between two points, then the correct relation is
(a) s = d
(b) s > d
(c) d > s
(d) none
3. Which of the following figures represents uniform motion of a moving object correctly?
...

Questions :
1. Which of the following statement is correct about the atom of an element?
(a) an atom can have only protons and neutrons but no electrons.
(b) an atom can have only electrons and neutrons but no protons
(c) an atom can have only electron and proton but no neutron
(d) an atom must always have a proton, neutron and electron
2. The number of valence electrons in a sulphide ion, S2-, is:
(a) 16
(b) 10
(c) 9
(d) 8
3. The isotopes o...

Questions :
1. The number of electrons in Na+ (atomic number = 11) are
(a) 11
(b) 10
(c) 12
(d) 13
2. There are four elements P, Q, R and S having atomic numbers of 4, 18, 10 and 16 respectively. The element which can exhibit covalency as well as electrovalency will be:
(a) -P
(b) Q
(c) R
(d) S
3. The maximum number of electron in 3rd shell can be
(a) 8
(b) 18
(c) 32
(d) 50
4. The valency of Al with atomic number 13 is
(a) 3
(b) 2...

Online test of Chapter 10 Gravitation 2 Science| Class 9th
Questions:
1. The weight of a body on the earth is 120 N. The weight of the same body on the moon will be
(a) 120 N.
(b) 20 N.
(c) zero.
(d) 240 N.
2. The force acting on a ball due to the earth has a magnitude Fb and that acting on the earth due to the ball has a magnitude Fe. Then
(a) Fb = Fe
(b) Fb > Fe
(c) Fb < Fe
(d) Fe = 0
3. Two bodies A and B of masses 100 g and 200